"Yes, clean! The top of the five C's of potion making." She said and wrote on the board the ingredients:

1 gallon of goat's milk.
1 tsp of crushed Yellow Moonstone
2 lacewing flies
10 Shrivelfigs
2 tbsp of chopped knotgrass
1 drop of Leech juice
5 drops Pomegranite juice
1 tsp bicorn horn, crushed
1 phoenix tear
1 daisy root, finely chopped
2 sprigs of Fluxweed
2 peppermint toads
1 chocolate frog
1 liquorish wand

"Start by cleaning your cauldrons and filling them with goat's milk."